Baking Trays

I’m trying to bake some sponge fingers, but i don’t have a sponge finer tin. Can I use a baking tray or anything like that, or will it all go wrong?

i think you could probably use something like a shallow baking tray, and then cut them into fingers when theyre cooked, but you may/may not have to change the cooking time, depending on how they turn out.
hope this helps!